Definition: on the day before today Level: A1
昨天我们去了动物园，看到了狮子！
We went to the zoo ___yesterday, and we saw a lion!
我昨天放学后踢了足球。
I played football ___yesterday after school.
昨天是我的生日，我收到了很多礼物。
It was my birthday ___yesterday, and I got many presents.
